If $5p^2-7p-3=0$ and $5q^2-7q-3=0, p\ne q$ , then the equation whose roots are $5p-4q$ and $5q-4p$ is

The roots of the quadratic equation $a{x}^2+2bx+c=0, \left(a\ne 0\right)$ are real and unequal, then $b^2>$ _____

The product of two roots of the equation $x^2-7x+3=0$

If the roots of a quadratic equation are $2$ and $-3$, then write the equation.

Form the quadratic equation from the roots $0 \mathrm{and} 4$.

Form the quadratic equation from the roots $\frac{1}{2} \mathrm{and} -\frac{1}{2}$.